Yes, I see them in the text just as anybody else does, but since I don't really know what they mean except by means of the translation, why should I use them?

我看着这些原版书，但是我也不懂他们真正什么意思,除了它们翻译过来的意思，所以我干嘛费劲去用俄语？

耶鲁公开课 - 文学理论导论课程节选

But the students, they think that I'm an old woman from the cave and I don't know anything

但学生们认为我是住在洞穴的老女人，我什么也不懂，

对于抄袭的想法 - SpeakingMax英语口语达人

I don't know the philology side, I don't know what disables to metaphysical questions.

我不知道者从语言学上来说对不对，我也不懂从形而上学角度看,有什么问题。

耶鲁公开课 - 死亡课程节选

I don't know them. I don't have that person.

我根本不懂,也不认识什么生理学家

耶鲁公开课 - 死亡课程节选